摘要
为了研究负压对煤体瓦斯流动的影响,对实验室和现场2种情况下的研究结果进行了对比分析。通过实验室试验研究了不同条件下负压对煤样渗流的影响。现场实测了不同负压下的钻孔瓦斯浓度,浓度随负压的增大而增大,达到一定值后,浓度开始下降,并通过瓦斯浓度分析,确定了合理的负压。
In order to study the influence of negative pressure on gas flow in coal body, the results were compared with two cases of laboratory and field. The influence of negative pressure on coal samples seepage under different conditions is studied the field, the gas concentration of drilling through laboratory tests was studied by laboratory test. In hole is measured by different negative pressure, and the concentration of the drilling hole increases with the increase of negative pressure. After a certain value, the concentration begins to drop.
出处
《煤炭技术》
CAS
北大核心
2016年第3期175-177,共3页
Coal Technology
关键词
负压
煤体
渗流
影响
negative pressure
coal body
seepage
influence
